..There are fetishes for that, and videos of people who will put their dick in a jar with wasps and bees, and have them sting it and they end up jizzing from it....the internet is...really....really.......weird..

since my mum had a beehive in our backyard i can explain this.
when a colony of bees gets to large they make a second queen and around half of the colony moves out with said queen to make a hive elsewhere. when this happend all of these bees have their bellies filled with honey and are docile. they will clump around the queen like this and wont sting you even if you slap them off the tree.

just call a person who knows about this like a beekeeper to get them away for you if you are scared, or just wait until they move on which they most often will.

to give an example of this my mum was in this group and she was called out to help another beekeeper get a new colony by capturing one of these things.
they headed out and there was a large group of people around a restaurant where there was one of these big lumps, my mum and the other beekeeper just used these large pieces of cardboard so they could take bigger lumps and put them in these containers, fun fact: they werent wearing the suits you see beekeepers in sometimes because these bees really dont sting when doing this.

this is the only time that a group of bees is truly a swarm. it is also part of the reason beekeepers smoke bees. it causes the bees to act as if their was fire. they eat their fill of honey ready to vacate the hive making them more docile. (this is only part of the reason its also becasue bees ******* hate smoke and it drives them down in the hive)